The Tor Browser: parser/html/nsHtml5MetaScannerCppSupplement.h@8bccb770b82d

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #include "nsEncoderDecoderUtils.h"

     6 #include "nsISupportsImpl.h"

     8 #include "mozilla/dom/EncodingUtils.h"

    10 using mozilla::dom::EncodingUtils;

    12 void

    13 nsHtml5MetaScanner::sniff(nsHtml5ByteReadable* bytes, nsACString& charset)

    14 {

    15   readable = bytes;

    16   stateLoop(stateSave);

    17   readable = nullptr;

    18   charset.Assign(mCharset);

    19 }

    21 bool

    22 nsHtml5MetaScanner::tryCharset(nsString* charset)

    23 {

    24   // This code needs to stay in sync with

    25   // nsHtml5StreamParser::internalEncodingDeclaration. Unfortunately, the

    26   // trickery with member fields here leads to some copy-paste reuse. :-(

    27   nsAutoCString label;

    28   CopyUTF16toUTF8(*charset, label);

    29   nsAutoCString encoding;

    30   if (!EncodingUtils::FindEncodingForLabel(label, encoding)) {

    31     return false;

    32   }

    33   if (encoding.EqualsLiteral("UTF-16BE") ||

    34       encoding.EqualsLiteral("UTF-16LE")) {

    35     mCharset.Assign("UTF-8");

    36     return true;

    37   }

    38   if (encoding.EqualsLiteral("x-user-defined")) {

    39     // WebKit/Blink hack for Indian and Armenian legacy sites

    40     mCharset.Assign("windows-1252");

    41     return true;

    42   }

    43   mCharset.Assign(encoding);

    44   return true;

    45 }

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